Oakton WD-35634-35 PCTSTestr 50 is the Premium 50 series waterproof multi-parameter compact pH/Conductivity/TDS/Salinity meter that offers 0.01 pH/1% accuracy, multi-point auto or manual calibration, auto ranging, adjustable TDS factor, ATC, data-hold, auto power-off and user-replaceable combined sensor module.
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